The Target of Evaluation (TOE) is the SLX Product Series operating with Version 20.1.1aa. The SLX Product Series operating with Version 20.1.1aa are hardware appliances with embedded software installed on a management processor. The embedded software is a version of Extreme Network’s proprietary Operating System. The OS controls the switching and routing of network frames and packets among the connections available on the hardware appliances.
","evaluation_configuration":"The TOE must be configured in accordance with the Extreme SLX-OS Common Criteria Configuration Guide, 20.1.1aa, 16 November 2020. The evaluated configuration consists of the following devices:
\r\n| \r\n Model \r\n | \r\n\r\n CPU \r\n | \r\n
| \r\n SLX 9640 \r\n | \r\n\r\n Intel Broadwell processor \r\nIntel(R) Xeon(R) CPU D-1527 \r\n | \r\n
| \r\n SLX 9150/9250 \r\n | \r\n\r\n Intel Denverton processor \r\nIntel(R) Atom(TM) CPU C3758 \r\n | \r\n
Table 1-1 Evaluated Models & Processors
\r\n","security_evaluation_summary":"
The evaluation was carried out in accordance to the Common Criteria Evaluation and Validation Scheme (CCEVS) requirements and guidance. The evaluation demonstrated that the TOE meets the security requirements contained in the Security Target. The criteria against which the TOE was judged are described in the Common Criteria for Information Technology Security Evaluation, Version 3.1, Revision 5, April 2017. The evaluation methodology used by the evaluation team to conduct the evaluation is the Common Methodology for Information Technology Security Evaluation, Evaluation Methodology, Version 3.1, Revision 5, April 2017. The product, when delivered and configured as identified in the Extreme SLX-OS Common Criteria Configuration Guide, 20.1.1aa, 16 November 2020 document, satisfies all of the security functional requirements stated in the Extreme Networks, Inc. SLX Product Series operating with version 20.1.1aa (NDcPP21) Security Target, Version 0.5, November 16, 2020. The project underwent CCEVS Validator review. The evaluation was completed in November 2020. Results of the evaluation can be found in the Common Criteria Evaluation and Validation Scheme Validation Report (report number CCEVS-VR-VID11118-2020) prepared by CCEVS.
","environmental_strengths":"The logical boundaries of the Extreme Networks, Inc. SLX Product Series operating with version 20.1.1aa are realized in the security functions that it implements. Each of these security functions is summarized below.
\r\nSecurity audit:
\r\nThe TOE generates audit events for numerous activities including policy enforcement, system management and authentication. A syslog server in the environment is relied on to store audit records generated by the TOE. The TOE generates a complete audit record including the IP address of the TOE, the event details, and the time the event occurred. The time stamp is provided by the TOE appliance hardware.
\r\nCryptographic support:
\r\nThe TOE contains CAVP-tested cryptographic implementations that provide key management, random bit generation, encryption/decryption, digital signature and secure hashing and key-hashing features in support of higher level cryptographic protocols including SSH and TLS.
\r\nIdentification and authentication:
\r\nThe TOE authenticates administrative users. In order for an administrative user to access the TOE, a user account including a user name and password must be created for the user, and an administrative role must be assigned. The TOE performs the validation of the login credentials and also supports use of a RADIUS server.
\r\nSecurity management:
\r\nThe TOE provides Command Line Interface (CLI) commands to access the wide range of security management functions to manage its security policies. The TOE also provides REST APIs (protected by TLS) and NetConf (protected by SSH) to configure the TOE. Security management commands are limited to authorized users (i.e., administrators) and available only after they have provided acceptable user identification and authentication data to the TOE. The security management functions are controlled through the use of privileges associated with roles that can be assigned to TOE users. Among the available privileges, only the Authorized Administrator role can actually manage the security policies provided by the TOE and the TOE offers a complete set of functions to facilitate effective management.
\r\nProtection of the TSF:
\r\nThe TOE implements a number of features design to protect itself to ensure the reliability and integrity of its security features.
\r\nIt protects particularly sensitive data such as stored passwords and cryptographic keys so that they are not accessible even by an administrator. It also provides its own timing mechanism to ensure that reliable time information is available (e.g., for log accountability).
\r\nNote that the TOE is a single appliance or a closely grouped (e.g., in the same rack) collection of appliances acting as a unit. As such, no intra-TOE communication is subject to any risks that may require special protection (e.g., cryptographic mechanisms).
\r\nThe TOE includes functions to perform self-tests so that it might detect when it is failing. It also includes mechanisms (i.e., verification of the digital signature of each new image) so that the TOE itself can be updated while ensuring that the updates will not introduce malicious or other unexpected changes in the TOE.
\r\nTOE access:
\r\nThe TOE can be configured to display a message of the day banner when an administrator establishes an interactive session and subsequently will enforce an administrator-defined inactivity timeout value after which the inactive session (local or remote) will be terminated.
\r\nTrusted path/channels:
\r\nThe TOE protects interactive communication with administrators using SSHv2 for CLI and NetConf access, ensuring both integrity and disclosure protection. If the negotiation of an encrypted session fails or if the user does not have authorization for remote administration, an attempted connection will not be established. The TOE also provides a REST API interface for security management that is protected with TLS.
\r\nThe TOE protects communication with network peers, such as a log server and RADIUS Server, using TLS connections to prevent unintended disclosure or modification of logs. SSHv2 is used to support SCP which the TOE uses for download of TOE updates.
","features":[]}